1.) On September 2, Disney-owned ABC is going to air the TV-special-documentary "The Story of Frozen: Making a Disney Animated Classic" which will delve into the making of the greatest movie ever, locations in Norway that inspired the environment in the film, interviews with the creators and cast of the film, aswell as previews of Big Hero 6 and the Frozen-themed fourth season of Once Upon a Time. The show will also include an "announcement regarding the next chapter of Anna and Elsa". Exciting!
2.) There is a upcoming new book-series titled Disney: Anna & Elsa that will serve as a continuation of the film. I've read an excerpt of book #1: All Hail the Queen, and it is excellent!
3.) On November 18, Disney releases Frozen: Sing-Along Edition on DVD and Digital HD, including some all new bonus features. Cool! (pun intended)
4.) New Once Upon a Time footage reveals potential spoilers regarding its Frozen-themed storyline.
5.) Rumor has it a potential Frozen 3D release in the US (potentially in October or the beginning of next year?) could include a lot of new bonus features.